... screw barrelKey word:screw barrel,bimetallic screw barrel,extruder screw barrel,screw barrel for injection molding machine,conical or parallel screw barrel,Material:38CrMoAlA,SKD11,SKD61,HPT2B,high ... of Bimetallic Layer: >2mm Used for granulation,PE,PP,PA,PC,ABS,AS,etcWe supply various types of screw barrels according to customer ...